STATEN ISLAND, N.Y. -- An 18-year-old from Midland Beach was arrested after allegedly taking part in a street robbery in his town that left one victim beaten unconscious and hospitalized.

Police said that Efren Garcia, of the 1000 block of Olympia Boulevard, was part of a trio of robbers that set upon two male victims at Colony and Midland avenues around 2:30 a.m. yesterday, demanding money. When the victims refused, cops said, the robbers began to punch them.

One victim was "punched unconscious and required multiple stitches to his face" and was admitted to Staten Island University Hospital, Ocean Breeze, according to an NYPD report. The other victim, cops said, sustained swelling and pain from punches to the rear of his head.

Neither victim was identified.

Garcia was arrested about two hours later at the corner of Mapleton Avenue and Baden Place, also Midland Beach.

District Attorney Daniel M. Donovan’s office said that Garcia was charged with two counts of assault in the third degree, two counts of attempted robbery in the second degree, and one count of attempted robbery in the third degree.